[INFO] fetching crate msg_store_server_api 0.1.1...
[INFO] building msg_store_server_api-0.1.1 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate msg_store_server_api 0.1.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate msg_store_server_api 0.1.1
[INFO] finished tweaking crates.io crate msg_store_server_api 0.1.1
[INFO] tweaked toml for crates.io crate msg_store_server_api 0.1.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate msg_store_server_api 0.1.1 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 61 packages to latest compatible versions
[INFO] [stderr]       Adding rand v0.8.5 (available: v0.9.2)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded leveldb v0.8.6
[INFO] [stderr]   Downloaded msg-store v0.9.1
[INFO] [stderr]   Downloaded ffi-opaque v2.0.1
[INFO] [stderr]   Downloaded msg_store_uuid v0.1.0
[INFO] [stderr]   Downloaded msg_store_database_in_memory_plugin v0.1.0
[INFO] [stderr]   Downloaded db-key v0.0.5
[INFO] [stderr]   Downloaded msg_store_database_leveldb_plugin v0.1.0
[INFO] [stderr]   Downloaded msg_store_database_plugin v0.1.0
[INFO] [stderr]   Downloaded leveldb-sys v2.0.9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb566ce5fa9fecf8b7121851b5bdd27610cf0ba6b3e638b96e4972a950c46199
[INFO] running `Command { std: "docker" "start" "-a" "cb566ce5fa9fecf8b7121851b5bdd27610cf0ba6b3e638b96e4972a950c46199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb566ce5fa9fecf8b7121851b5bdd27610cf0ba6b3e638b96e4972a950c46199", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb566ce5fa9fecf8b7121851b5bdd27610cf0ba6b3e638b96e4972a950c46199", kill_on_drop: false }`
[INFO] [stdout] cb566ce5fa9fecf8b7121851b5bdd27610cf0ba6b3e638b96e4972a950c46199
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 846879aa89ea44fe8d19016168fcbffd8a25e368d219e5bfbe1cde9614b703e1
[INFO] running `Command { std: "docker" "start" "-a" "846879aa89ea44fe8d19016168fcbffd8a25e368d219e5bfbe1cde9614b703e1", kill_on_drop: false }`
[INFO] [stderr]    Compiling msg_store_uuid v0.1.0
[INFO] [stderr]    Compiling ffi-opaque v2.0.1
[INFO] [stderr]    Compiling db-key v0.0.5
[INFO] [stderr]    Compiling cmake v0.1.54
[INFO] [stderr]    Compiling num_cpus v1.17.0
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling bincode v1.3.3
[INFO] [stderr]    Compiling msg-store v0.9.1
[INFO] [stderr]    Compiling leveldb-sys v2.0.9
[INFO] [stderr]    Compiling msg_store_database_plugin v0.1.0
[INFO] [stderr]    Compiling msg_store_database_in_memory_plugin v0.1.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling leveldb v0.8.6
[INFO] [stderr]    Compiling msg_store_database_leveldb_plugin v0.1.0
[INFO] [stderr]    Compiling msg_store_server_api v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.36s
[INFO] running `Command { std: "docker" "inspect" "846879aa89ea44fe8d19016168fcbffd8a25e368d219e5bfbe1cde9614b703e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "846879aa89ea44fe8d19016168fcbffd8a25e368d219e5bfbe1cde9614b703e1", kill_on_drop: false }`
[INFO] [stdout] 846879aa89ea44fe8d19016168fcbffd8a25e368d219e5bfbe1cde9614b703e1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e6a3639436bbd4b94bf70c39f75f1240fbef59c9141f062b2079375682163dd9
[INFO] running `Command { std: "docker" "start" "-a" "e6a3639436bbd4b94bf70c39f75f1240fbef59c9141f062b2079375682163dd9", kill_on_drop: false }`
[INFO] [stderr]    Compiling msg_store_server_api v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:116:25
[INFO] [stdout]     |
[INFO] [stdout] 116 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:128:25
[INFO] [stdout]     |
[INFO] [stdout] 128 |                     let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                         ----^^^^
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/msg/get.rs:135:21
[INFO] [stdout]     |
[INFO] [stdout] 135 |                 let mut body = self.as_mut().get_mut();
[INFO] [stdout]     |                     ----^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 2.48s
[INFO] running `Command { std: "docker" "inspect" "e6a3639436bbd4b94bf70c39f75f1240fbef59c9141f062b2079375682163dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6a3639436bbd4b94bf70c39f75f1240fbef59c9141f062b2079375682163dd9", kill_on_drop: false }`
[INFO] [stdout] e6a3639436bbd4b94bf70c39f75f1240fbef59c9141f062b2079375682163dd9
